   (matcha/run-match (matcha/<= 1) 0) ; => fails"
   [a]
   {:match (fn [b] (core/<= a b))
-   :description (describe-list "<=" [a])
+   :description (str "less than or equal to " (pr-str a))
    :describe-mismatch standard-describe-mismatch})
 
 (defn <

  (matcha/run-match (matcha/<= 1) 0) ; => fails"
  [a]
  {:match (fn [b] (core/>= a b))
   :description (describe-list ">=" [a])
   :describe-mismatch standard-describe-mismatch})

(def empty?

  (matcha/run-match (matcha/instance? clojure.lang.Keyword) 1) ; => fails"
  [klazz]
  {:match #(core/instance? klazz %)
   :description (str "an instance of " (.getName ^java.lang.Class klazz))})

(def
  ^{:doc
